Side frame for an exercise machine



FIG. 1 is a perspective view of a side frame for an exercise machine;

FIG. 2 is a side view of the side frame of the exercise machine of FIG. 1;

FIG. 3 is a top view of the side frame of the exercise machine of FIG. 1; and,

FIG. 4 is a front view of the side frame of the exercise machine of FIG. 1.

The broken lines in the drawings represent environmental subject matter and form no part of the claimed design. 

The ornamental design for a side frame for an exercise machine, as shown and described. 